Esper x Guide Suddenly strange portals began to appear in Korea. Grotesque creatures emerged from those portals. They were known as errors. The emergence of the monsters was soon followed by the appearance of another phenomenon-manifestation of supernatural abilities in certain members of the population. They were known as espers. But they suffered from their own abilities, which made them overheat, that's why every esper needed their guide. The one that was in perfect sync with their powers, they were called guides and their bond with the esper was called Link. However, the S-rank esper, Yoo Joonghyuk, was unable to establish a bond with the guides provided to him. Everyone was so weak that no one could control Joonghyuk's immense power. Will Yoo Joonghyuk find his guide and become humanity's last hope?